Knitting machine



Nov. 26, 1929.

H. oBE'RLND'r-:R

KNITTING MACHINE Filed Aprilv 14, 1927 Ptente'd'Nov. 26,

HERMANN QBERLNDER, oF zEULENnoDA, GERMANY `KNrirriNe MACHINE Application mea 'aprirla 1927, serial No certain bulging in order that-the knitted fabric fits properly on the curvatures of the limb, reversing must be carried out which is troublesome and requires more time., or otherwise expressed the knitting-machine has to 1o carry out more expensive work.

This invention has 'fon its object to improve the construction of the knittingmachine so that this inconvenience is avoided by causing during one carriage-stroke a gradually increasing and then decreasing loop-extension foi-'obtaining a bulging in the knitted fabric and either by making the outer cams move at a certain point of the needle cylinder along a. curved gui'deso that they- 20 are shifted with regard to the cent-ral cam or by making the needle lengths decrease gradually and then increase -gradually at 'those points at vwhich a bulging produced. Three forms ot' construction are shown, 'by way ot example, in the accompanying drawing, in which Fig. 1 shows,in plan view the preferred form of construction.

hasto be Fig. 2 is a cross section on line'II-II o Fig. 1. Y Figs'. 3 and 4 show in plan view the second and third form of construction. Fig. 5 shows in`plan view a fabric knitted according to the invention.

In theFigs. 1 to 4 onl those portions of the knitting-machine are shown, which are necessary to illustrate the invention.` a are the guide-bars for the cam-box b with the cams c. dis a needle-bed.

As shown in'Fig. 1 the. two-outer cams 0 are guided by means of bolts c in slots-f of the cam-box I). 'They are secured in this position by thumb-nuts g. In each outer can 0 a linger his and rests upon a frame so that it 'can be turned in' its bearing 183,748, and-'ineermaiiy March 1'9, 1927.

fabric has to be produced the bar has a In the form of construction shown in Fig. 2 the .g'lide-bars a forthe cam-box l) have each a curve. In the third form ot construction shown in Fig. 3,'thc'needles, at the point in question, are of such lengths that Ithe boundary-line m along the heads of the nee- A dles is curved.-

When thecam arrives at the curve either in the guide bar 1I, the guide bars av or the boniulary-line m of the needle'heads, the outer cani c inustevidently move along these curves when the -thumb nuts loosened so that at this point a'. gradually lengthening ot' the loops will be produced, froni which results in the knitted fabric.

1. A fiat knitting machine Jfor the production of knee-caps, body-belts and 4similar goods in which a bulging 'in the-knitted fabric, c

bination with the needle bed, 'two outer knocking-over cams', cam, and a guidewsepa-rated from said needle bed having a curve lto'sl 'ft said outer knocking-over vcams -n regard' to said inner knocking-over cam atthat'point at which a bulging has to be produced-in thev fabric.

a middle knocking-over,

the bulging n, (Fig. 5)

haste be producedv l comprising 1n com-k 2. A -iat knitting .machinea'ccording to'y claim 1, comprising in combination with the needle bed, two outer knocking-over cams', a

downwardly projecting from each o over cams, a middle and a guide separated HERMANN fixed which projects downwards c bar 1I fixed on the machinev f by means of a handle c. At that point of the' 50 needle-bed at which the bulging of the knitted having` a curve on which 

